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Arduino is an open source hardware platform for making interactive objects that can sense and control the physical world.

353 projects

This project was
created on 10/03/2015
and last updated 2 years ago.

Description

Seeed Studio's Grove is an ingenious way to create hardware interoperability between accessories made for maker. It uses a standard socket & pinout, supports more than 100 accessories already (from sensors to output, from displays to wireless communication). Breakout boards make several microcontroller & computer platforms to be able to use these accessories (full scale Arduinos, Raspberry Pi, Intel Edison and Galileo, VIA VAB-820, and so on).

GroveHat now brings access to all those accessories to Arduino Nano as well!

Details

Technical specs

This breakout board targets the v3.x series of the Arduino Nano (and compatible clones), while trying to be usable with other boards like the Pro Micro and v2.x series of the Nano. It makes available Serial (TX/RX) line, Digital, Analog, PWM, and I2C functions, while maintains the same form factor as the Nano board. Since all the above boards have slightly different pinout and very little space on the breakout board to indicate all the possibilities, the silkscreen tries to indicate the usage for the Nano v3.x, while additional documentation shows the functions on other boards.

Serial/D

D/I2C

A/I2c

Analog

D/PWM

Nano v3.x

Rx/D0, Tx/D1

D3, D2

A5, A4 or I2C

A0, A1

D9, D10

Nano v2.x

Rx/D0, Tx/D1

D3, D2

A3, A4

A7, A6

D9, D10

Pro Micro

Rx/D0, Tx/D1

D2, D2 or I2C

A5, A4

A0, A1

D9, D10

Above: matching up the Nano and GroveHat: fits onto the back of the Arduino board.

Above: Schematics

Errata

Known issues with the v1 board (mostly harmless, just for reference) The A/I2C socket's silkscreen wrongly indicates the pins for A4 and A5, they should be the switched: for most Grove-compatible analog devices use "A5" in the sketch (Nano v3.x) The A4/A5 pins are not marked as used with a silkscreen square around them on the side These issues will be fixed in future PCB runs!

License

Project Logs

I really wanted to make this board because I felt it was useful not just for me, but useful in general. The initial production run was 30 boards, using Seeed Studio's FusionPCB service. Now that's almost all gone. It's time to do a bug-fix update to the Gerbers and do another production run! Things likely to change: